Yeah, there are good reasons to go with a gaming laptop. The issue in this article isn't one of them. It's a reason to go with a pre-built but not a laptop.Agreed with the other commenters. Suggesting expensive gaming laptops because of self induced problems seems dubious. How does one fix a laptop? Break out the soldering iron and have at it? Why not suggest prebuilts instead? They just work out of the box, the same with laptops while maintaining the possibility to fix and upgrade. If you don't need the portability of a laptop, then it's probably not a good fit.
An RTX 4080 (real version) will blow an RTX 4090 (laptop) out of the water. And you'll pay 50% more for the laptop.
I put together good pre-builts, myself. With My current desktop, I went with an Alienware machine. I got a great deal at a time it was hard to find parts. Nothing wrong with pre-built, when you can find a whole machine on sale, which you could get for MAYBE $100 less if you search for parts on sale for months.
Pre-builts yes, but pre-built desktops, not laptops.